1 /* $OpenBSD: if_iwm.c,v 1.39 2015/03/23 00:35:19 jsg Exp $ */
4 * Copyright (c) 2014 genua mbh <info@genua.de>
5 * Copyright (c) 2014 Fixup Software Ltd.
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 * Based on BSD-licensed source modules in the Linux iwlwifi driver,
22 * which were used as the reference documentation for this implementation.
24 * Driver version we are currently based off of is
25 * Linux 3.14.3 (tag id a2df521e42b1d9a23f620ac79dbfe8655a8391dd)
27 ***********************************************************************
29 * This file is provided under a dual BSD/GPLv2 license. When using or
30 * redistributing this file, you may do so under either license.
34 * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved.
36 * This program is free software; you can redistribute it and/or modify
37 * it under the terms of version 2 of the GNU General Public License as
38 * published by the Free Software Foundation.
40 * This program is distributed in the hope that it will be useful, but
41 * WITHOUT ANY WARRANTY; without even the implied warranty of
42 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
43 * General Public License for more details.
45 * You should have received a copy of the GNU General Public License
46 * along with this program; if not, write to the Free Software
47 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
50 * The full GNU General Public License is included in this distribution
51 * in the file called COPYING.
53 * Contact Information:
54 * Intel Linux Wireless <ilw@linux.intel.com>
55 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
60 * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
61 * All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * * Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 * * Redistributions in binary form must reproduce the above copyright
70 * notice, this list of conditions and the following disclaimer in
71 * the documentation and/or other materials provided with the
73 * * Neither the name Intel Corporation nor the names of its
74 * contributors may be used to endorse or promote products derived
75 * from this software without specific prior written permission.
77 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
78 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
79 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
80 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
81 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
82 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
83 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
84 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
85 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
86 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
87 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
89 #include <sys/cdefs.h>
90 __FBSDID("$FreeBSD$");
92 #include <sys/param.h>
95 #include <sys/endian.h>
96 #include <sys/firmware.h>
97 #include <sys/kernel.h>
98 #include <sys/malloc.h>
100 #include <sys/mutex.h>
101 #include <sys/module.h>
102 #include <sys/proc.h>
103 #include <sys/rman.h>
104 #include <sys/socket.h>
105 #include <sys/sockio.h>
106 #include <sys/sysctl.h>
107 #include <sys/linker.h>
109 #include <machine/bus.h>
110 #include <machine/endian.h>
111 #include <machine/resource.h>
113 #include <dev/pci/pcivar.h>
114 #include <dev/pci/pcireg.h>
119 #include <net/if_var.h>
120 #include <net/if_arp.h>
121 #include <net/if_dl.h>
122 #include <net/if_media.h>
123 #include <net/if_types.h>
125 #include <netinet/in.h>
126 #include <netinet/in_systm.h>
127 #include <netinet/if_ether.h>
128 #include <netinet/ip.h>
130 #include <net80211/ieee80211_var.h>
131 #include <net80211/ieee80211_regdomain.h>
132 #include <net80211/ieee80211_ratectl.h>
133 #include <net80211/ieee80211_radiotap.h>
135 #include <dev/iwm/if_iwmreg.h>
136 #include <dev/iwm/if_iwmvar.h>
137 #include <dev/iwm/if_iwm_debug.h>
138 #include <dev/iwm/if_iwm_util.h>
139 #include <dev/iwm/if_iwm_power.h>
145 #define IWM_POWER_KEEP_ALIVE_PERIOD_SEC 25
148 iwm_mvm_beacon_filter_send_cmd(struct iwm_softc *sc,
149 struct iwm_beacon_filter_cmd *cmd)
153 ret = iwm_mvm_send_cmd_pdu(sc, IWM_REPLY_BEACON_FILTERING_CMD,
154 IWM_CMD_SYNC, sizeof(struct iwm_beacon_filter_cmd), cmd);
157 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
158 "ba_enable_beacon_abort is: %d\n",
159 le32toh(cmd->ba_enable_beacon_abort));
160 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
161 "ba_escape_timer is: %d\n",
162 le32toh(cmd->ba_escape_timer));
163 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
164 "bf_debug_flag is: %d\n",
165 le32toh(cmd->bf_debug_flag));
166 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
167 "bf_enable_beacon_filter is: %d\n",
168 le32toh(cmd->bf_enable_beacon_filter));
169 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
170 "bf_energy_delta is: %d\n",
171 le32toh(cmd->bf_energy_delta));
172 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
173 "bf_escape_timer is: %d\n",
174 le32toh(cmd->bf_escape_timer));
175 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
176 "bf_roaming_energy_delta is: %d\n",
177 le32toh(cmd->bf_roaming_energy_delta));
178 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
179 "bf_roaming_state is: %d\n",
180 le32toh(cmd->bf_roaming_state));
181 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
182 "bf_temp_threshold is: %d\n",
183 le32toh(cmd->bf_temp_threshold));
184 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
185 "bf_temp_fast_filter is: %d\n",
186 le32toh(cmd->bf_temp_fast_filter));
187 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
188 "bf_temp_slow_filter is: %d\n",
189 le32toh(cmd->bf_temp_slow_filter));
195 iwm_mvm_beacon_filter_set_cqm_params(struct iwm_softc *sc,
196 struct iwm_node *in, struct iwm_beacon_filter_cmd *cmd)
198 cmd->ba_enable_beacon_abort = htole32(sc->sc_bf.ba_enabled);
202 iwm_mvm_update_beacon_abort(struct iwm_softc *sc, struct iwm_node *in,
205 struct iwm_beacon_filter_cmd cmd = {
206 IWM_BF_CMD_CONFIG_DEFAULTS,
207 .bf_enable_beacon_filter = htole32(1),
208 .ba_enable_beacon_abort = htole32(enable),
211 if (!sc->sc_bf.bf_enabled)
214 sc->sc_bf.ba_enabled = enable;
215 iwm_mvm_beacon_filter_set_cqm_params(sc, in, &cmd);
216 return iwm_mvm_beacon_filter_send_cmd(sc, &cmd);
220 iwm_mvm_power_log(struct iwm_softc *sc, struct iwm_mac_power_cmd *cmd)
222 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
223 "Sending power table command on mac id 0x%X for "
224 "power level %d, flags = 0x%X\n",
225 cmd->id_and_color, IWM_POWER_SCHEME_CAM, le16toh(cmd->flags));
226 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
227 "Keep alive = %u sec\n", le16toh(cmd->keep_alive_seconds));
229 if (!(cmd->flags & htole16(IWM_POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
230 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
231 "Disable power management\n");
234 KASSERT(0, ("unhandled power management"));
237 DPRINTF(mvm, "Rx timeout = %u usec\n",
238 le32_to_cpu(cmd->rx_data_timeout));
239 DPRINTF(mvm, "Tx timeout = %u usec\n",
240 le32_to_cpu(cmd->tx_data_timeout));
241 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_SKIP_OVER_DTIM_MSK))
242 DPRINTF(mvm, "DTIM periods to skip = %u\n",
243 cmd->skip_dtim_periods);
244 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_LPRX_ENA_MSK))
245 DPRINTF(mvm, "LP RX RSSI threshold = %u\n",
246 cmd->lprx_rssi_threshold);
247 if (cmd->flags & cpu_to_le16(IWM_POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
248 DPRINTF(mvm, "uAPSD enabled\n");
249 DPRINTF(mvm, "Rx timeout (uAPSD) = %u usec\n",
250 le32_to_cpu(cmd->rx_data_timeout_uapsd));
251 DPRINTF(mvm, "Tx timeout (uAPSD) = %u usec\n",
252 le32_to_cpu(cmd->tx_data_timeout_uapsd));
253 DPRINTF(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
254 DPRINTF(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
255 DPRINTF(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
261 iwm_mvm_power_build_cmd(struct iwm_softc *sc, struct iwm_node *in,
262 struct iwm_mac_power_cmd *cmd)
264 struct ieee80211_node *ni = &in->in_ni;
265 int dtimper, dtimper_msec;
267 struct ieee80211com *ic = &sc->sc_ic;
268 struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps);
270 cmd->id_and_color = htole32(IWM_FW_CMD_ID_AND_COLOR(IWM_DEFAULT_MACID,
272 dtimper = vap->iv_dtim_period ?: 1;
275 * Regardless of power management state the driver must set
276 * keep alive period. FW will use it for sending keep alive NDPs
277 * immediately after association. Check that keep alive period
278 * is at least 3 * DTIM
280 dtimper_msec = dtimper * ni->ni_intval;
282 = MAX(3 * dtimper_msec, 1000 * IWM_POWER_KEEP_ALIVE_PERIOD_SEC);
283 keep_alive = roundup(keep_alive, 1000) / 1000;
284 cmd->keep_alive_seconds = htole16(keep_alive);
288 iwm_mvm_power_mac_update_mode(struct iwm_softc *sc, struct iwm_node *in)
292 struct iwm_mac_power_cmd cmd;
294 memset(&cmd, 0, sizeof(cmd));
296 iwm_mvm_power_build_cmd(sc, in, &cmd);
297 iwm_mvm_power_log(sc, &cmd);
299 if ((ret = iwm_mvm_send_cmd_pdu(sc, IWM_MAC_PM_POWER_TABLE,
300 IWM_CMD_SYNC, sizeof(cmd), &cmd)) != 0)
303 ba_enable = !!(cmd.flags &
304 htole16(IWM_POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
305 return iwm_mvm_update_beacon_abort(sc, in, ba_enable);
309 iwm_mvm_power_update_device(struct iwm_softc *sc)
311 struct iwm_device_power_cmd cmd = {
312 .flags = htole16(IWM_DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
315 if (!(sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
318 cmd.flags |= htole16(IWM_DEVICE_POWER_FLAGS_CAM_MSK);
319 IWM_DPRINTF(sc, IWM_DEBUG_PWRSAVE | IWM_DEBUG_CMD,
320 "Sending device power command with flags = 0x%X\n", cmd.flags);
322 return iwm_mvm_send_cmd_pdu(sc,
323 IWM_POWER_TABLE_CMD, IWM_CMD_SYNC, sizeof(cmd), &cmd);
327 iwm_mvm_enable_beacon_filter(struct iwm_softc *sc, struct iwm_node *in)
329 struct iwm_beacon_filter_cmd cmd = {
330 IWM_BF_CMD_CONFIG_DEFAULTS,
331 .bf_enable_beacon_filter = htole32(1),
335 iwm_mvm_beacon_filter_set_cqm_params(sc, in, &cmd);
336 ret = iwm_mvm_beacon_filter_send_cmd(sc, &cmd);
339 sc->sc_bf.bf_enabled = 1;
345 iwm_mvm_disable_beacon_filter(struct iwm_softc *sc)
347 struct iwm_beacon_filter_cmd cmd;
350 memset(&cmd, 0, sizeof(cmd));
351 if ((sc->sc_capaflags & IWM_UCODE_TLV_FLAGS_BF_UPDATED) == 0)
354 ret = iwm_mvm_beacon_filter_send_cmd(sc, &cmd);
356 sc->sc_bf.bf_enabled = 0;
363 iwm_mvm_update_beacon_filter(struct iwm_softc *sc, struct iwm_node *in)
365 if (!sc->sc_bf.bf_enabled)
368 return iwm_mvm_enable_beacon_filter(sc, in);